Centrifugal ore separator



(No Model.) 3 Sheets-Sheet 2.

0. B. PEGK. OE NTRIFUGAL ORE SEPARATOR.

No. 489,090. Patented Jan. 3, 1893.

I In u L 4 mm unuw'":

' lmumnn" w Tn rarns ATENT OFFICE.

ORRlN l3. PECK, OF CHICAGO, ILLINOIS, ASSIGUOR T MELINDA PECK, OF SAlllEPLACE.

CENTRll-UGAL. QRELSEPARATOR.

srncrnrcnrron forming part of Letters Patent No. eeaoeo, dated January3, 1893.

Application filed April 24, 1891. Serial No. 390,326. (No model.)

To all whom it may concern:

Be it known that 3, 01mm B. PECK, a citizen of the United States,residing at Chicago, Cook county, Illinois, have invented certain newand useful Improvements in Centrifugal Ore-Separators, of which the fllowing is a specification.

In operating machinery of this class, I have found that it is desirableto keep the particles of material While being treated constantlysubmerged, and the object of my invention ris to provide means forregulating the dis charge of thcliquid and material being treated insuch manner as to maintain a constantly submerged state of suchmaterial, by the use of as small a quantity of water or other liquid aspracticable, and my invention consists in the features and details ofconstruction hereinafter described and claimed. I

In the drawings, Figure l is'a central vertica'l section of a machineprovided with my improvements; Fig. 2 a similar section of a portion ofthe upper part of such machine,

drawn on an enlarged scale; Fig. 3 a plan view of the machine shown inFig. 1; Fig. 4 is a vertical-central section of the vessel, showing amodified form of the apparatus; and Fig. 5 is a sectional view taken online 5 5 of Fig. 4.

In treating powdered or finely divided material containing metallic ormineral-bearing substances by the action of centrifugal force in arevolving vessel for the separation of the heavier particles, as hasbeen explained in my United States Letters Patent Nos. 444,614, 444,615,and 4ll,fil9, while the material is being treated in the revolvingvessel the heavier particles lodge and accumulate on the interiorsurface of the accumulated and accumulating deposit ormass of materialretained in the vessel, while the lighter particles or portions of thematerial pass over the surface of the accumulated mass to the points ofdischarge, and is thrown oil or discharged by the action of centrifugalforce. I have found that,during this operation it is usually desirableand advantageous to use water with the material while being sotreated,and that while the material being treated together with thewater is passing up over the surface of the accumulated mass in thevessel from the point where it is being introduced or first acted upon,as above explained, it tends to out or wash channels or grooves in thesurface of the accumulated mass in the vessel, which prevents aneffective separation of the heavier particles, and often causes portionsof the mass of heavier particles that have already accumulated in thevessel to be washed and carried away, discharged and lost. sion orwashing of channels in the surface of the accumulated material in thevessel is caused by the very rapid passage, mainly of the waterintroduced into the vessel over its surface in a thin or very shallowlayer or sheet. To avoid this difficulty I find it desirable ornecessary to construct a vessel that will hold a quantity of water orother liquid in a way to submerge the surface of the accumulatedmaterial in the vessel, and also the material introduced and beingtreated; and to accomplish this and effect a continued discharge of thelighter material I find it necessary to pro vide means for the dischargeof the lighter material under and beneath the surface of the water andfurther to facilitate the use of as small a quantity of water or otherfluid as practicable, and to maintain in the subnwrged condition of thematerials in the vesselI find it desirable to provide means forregulating the discharge of the material from the vessel.

In making my improved machine I provide a suitable rcvoluble vessel A,mounted upon a shaft B, revolved by means of any convenient andsufficient motive power. The vessel is provided with an opening 0, inits top for the admission of the water and the particles of material tobe treated, and with any desired number of discharge orifices D,locatedin the side of thcvessel at a point near the top thereof. For thepurpose of closing or diminishing these orifices, I provide valves orstoppers E, attached to rods c, which are supported in suitable bearingsF, so that they are free to slide back and forth as hereinafterdescribed. These stoppers may be operated simultaneously or separatelyas preferred, and in the drawings I have shown two means whereby theyare operated simultaneously, without, however, intending to limit myselfto the preciseineans shown, or either of them, since such means areintended but as illustrations of two vessel.

ways in which the desired results can be acing connected in any suitablemanner with I one of the rods 6, and the other end extending up throughthe top of the vessel and being preferably provided with a beveledsurface g, as shown. In their normal position the stoppers are advancedso as to close the orifices and to maintain this position I prefer toprovide springs g attached to the vessel, and engaging with or hearingagainst the levers G. 1 next construct a ring or collar ll, preferablybeveled as shown, which is connected to a lever or arm I, pivoted atsomefixed point in the machinery outside of the To restore this leverand ring to their normal position, in which they are shown in thedrawings, after they have been moved therefrom in the manner hereinafterto be described, I provide a spring 2'. I next construct a cam J,mountedupon a shaft j,which is journaled in suitable bearings, as shown. Thisshaft is provided with apulleyj, and a belt J, passes over the shaft B,over suitable pulleys and around the pulley j, whereby the revolution ofthe shaft B revolves the shaft j, and the cam J. As this cam revolvestoward the left (Fig. 2.) it comes in contact with the under side of thelever l, rocking it upon its bearings and depressing the ring H. Thisring, as it moves downward, engages with the beveled faces on the upperends of the levers G, rocking these ends outward and thereby withdrawingthe stoppers and opening the discharge orifices. As long as the cam J remains in contact with the levers I, these orifices will remain open.After the cam has passed the levers the latter will be restored to theirnormal position by means of the spring 1', and the springs will restorethe .normalposition of the levers G, therebymoving the stoppers to againclose the orifices.

In the form shown in Figs. l and 5 I the pense with the ring II, and thedevices in ten'ded to operate this ring and also with the levers G, andin place thereof I mount floats K upon the rods 6. As the vessel isrevolved the water will be driven by centrifugal force toward the sidethereof, leaving a hole or well in the center thereof as shown in Figs.4 and the vessel.

orifices below the wan 5, and the floats rest as shown or. the side orsurface of said well, their position being maintained byth'e centrifugalforce and the pressure of water. As the amount of water in the vesselincreases the floats will hemoved away from the side of the vessel andas it diminishes'the fioats will approach the side of The partsare soadjusted that when the quantity of water in the vessel is diminished tothe least quantity desired the floats will have moved sut'ficiently toclose the orifices by means of the stoppers.- As the quantity of waterincreases in the vessel the floats will gradually move away from theorifices, opening them to allow the discharge of the contents of thevessel. In this way a practically constant quantity of water ismaintained in the vessel, notwithstanding that the amount beingintroduced may Delimited and vary from time to time, since if thequantity falls below the amount desired or to the least desirableamount, the floats will close the ori fices until the quantity in thevessel rises sufficieutly, after which they will open them again, asalready described.

By the Word stopper 1 mean any device applicable to be used in thisconnection and do not wish to limit myself to the use of mere plugs asshown in the time Q.

I claim: I

1. In centrifugal ore separates-ma rovolubie vessel provided with one ormore discharge orifices below the water turtles, and means formechanically and an oinn zically ing the discharge of i d through theorifices, sol): scribed.

2. In centrifugal ore vessel provided with o for each orifice, operatedautomatically, to regulate the dischai water and material thro J, theorifices, stantially as describcrll. p

In centrifugal ore separators, rcvoluble vessel provided with one or motllscha' orifices below. the water surface.

cc, and a llo'at for autom: e. 1e stopporsto regulz the inst oi? a andmat substantially d

